Mailbox, recently purchased by Dropbox, has a wide-open hole that could allow bad actors to hijack your iOS device. Italian researcher Michele Spagnuolo shows how opening a JavaScript-equipped message causes iOS apps to launch autonomously. There doesn’t seem to be a fix for the issue just yet, so if you’re using Mailbox on your device, it’s probably a good idea to switch to another email app. Update: Mailbox says it’s working on an improvement to mail formatting that will mitigate the issue.”]
Source: https://gizmodo.com/mailbox-for-ios-has-a-huge-security-flaw-1385847324